Configurable Pseudo Noise Radar Imaging System Enabling Synchronous MIMO Channel Extension

In this article, we propose an evolved system design approach to ultra-wideband (UWB) radar based on pseudo-random noise (PRN) sequences, the key features of which are its user-adaptability to meet the demands provided by desired microwave imaging applications and its multichannel scalability. In li...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (5), p.2454
Main Authors: Bräunlich, Niklas, Wagner, Christoph W, Sachs, Jürgen, Del Galdo, Giovanni
Format: Article
Language:English
Subjects:
Antennas
Clock generators
Computer architecture
Data acquisition
Design and construction
Electric waves
Electromagnetic radiation
Electromagnetic waves
Imaging systems
Medical imaging
MIMO communications
Mine detection
multichannel sensing
Nondestructive testing
PN radar
Radar
Radar imaging
Radar systems
Random noise
Receivers & amplifiers
Red Pitaya
Signal processing
Signal to noise ratio
Synchronism
synchronous MIMO
system architecture
System theory
Systems design
Ultra wideband technology
ultra-wideband
Ultrawideband radar
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Summary:In this article, we propose an evolved system design approach to ultra-wideband (UWB) radar based on pseudo-random noise (PRN) sequences, the key features of which are its user-adaptability to meet the demands provided by desired microwave imaging applications and its multichannel scalability. In light of providing a fully synchronized multichannel radar imaging system for short-range imaging as mine detection, non-destructive testing (NDT) or medical imaging, the advanced system architecture is presented with a special focus put on the implemented synchronization mechanism and clocking scheme. The core of the targeted adaptivity is provided by means of hardware, such as variable clock generators and dividers as well as programmable PRN generators. In addition to adaptive hardware, the customization of signal processing is feasible within an extensive open-source framework using the Red Pitaya data acquisition platform. A system benchmark in terms of signal-to-noise ratio (SNR), jitter, and synchronization stability is conducted to determine the achievable performance of the prototype system put into practice. Furthermore, an outlook on the planned future development and performance improvement is provided.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23052454